In addition to conjuring up memories of tasty Spanish soups, SOPA is meant to crack down on foreign websites that sell pirated versions of American software, music and other digital products. Supporters say it is needed to update the 1998 Digital Millennium Copyright Act, which applies to American websites, but opponents say it gives too much power to copyright holders and law enforcement, especially the U.S. Attorney General’s office.

A total of 71 lawmakers are sponsoring SOPA, so it’s not entirely clear why Blackburn and Corker are being singled out in each chamber. Blackburn tangled previously with online groups over the issue of “net neutrality.” The originator of the Reddit campaign lists Corker’s positions on other piracy bills, the Patriot Act and “Don’t Ask, Don’t Tell” — as well as the “Call Me” ad from the 2006 election campaign — as reasons why they are targeting him.